CN203257406U - Underground drill column fault diagnosis system - Google Patents
Underground drill column fault diagnosis system Download PDFInfo
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- CN203257406U CN203257406U CN 201320176237 CN201320176237U CN203257406U CN 203257406 U CN203257406 U CN 203257406U CN 201320176237 CN201320176237 CN 201320176237 CN 201320176237 U CN201320176237 U CN 201320176237U CN 203257406 U CN203257406 U CN 203257406U
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Abstract
The utility model relates to an underground drill column fault diagnosis system which comprises a sound pressure sensor, a shaft mouth three-dimensional acceleration sensor, a drill column top three-dimensional acceleration sensor, a pressure sensor, a multi-channel signal acquisition and transmission device, a multi-channel signal receiving device and a computer system. The sound pressure sensor is fixed to a drill floor, the shaft mouth three-dimensional acceleration sensor is fixed to a casing pipe, the pressure sensor is arranged on a vertical pipe, the drill column top three-dimensional acceleration sensor is arranged on a water faucet, the multi-channel signal acquisition and transmission device is arranged on a drilling machine racking platform, and the multi-channel signal acquisition and transmission device is in wireless connection with the multi-channel signal receiving device. The underground drill column fault diagnosis system can achieve location and quantified diagnoses on underground faults, greatly improve the accuracy rate and the recognition effect of the quantified diagnoses, and achieve recognition on operating states of a drill column and early diagnoses on the drill column, an underground dynamic drilling tool and a drill; besides, the underground drill column fault diagnosis system is low in cost, convenient to install, reasonable in installation position and high in security coefficient.
Description
Technical field
The utility model relates to the oil-well drilling equipment technical field, particularly a kind of underground drill stem fault diagnosis system.
Background technology
Drill string is the important tool that realizes the safety high speed drilling well, and applying working condition is very abominable, except bearing tensile, compressive, bending and torsional load, also bears various forms of judders, is the most complicated stressed tubing string in all oil well pipes.Occur in drilling process to pierce through in early days, the failure accidents such as fracture, gently salvage, the loss drill string, heavy cause full well to be scrapped, often cause larger economic loss.According to statistics, the drill string failure accidents all occured in external 14% Oil/gas Well to some extent, and the direct economic loss of every accident is up to 106000 dollars.All accounting for 70% in accidents in the accident that China causes due to drilling tool quality problems and improper use, in these accidents, 10% is directly related with drillstring vibrations.Annual approximately five or six hundred of the drilling rod accidents that occur in each oil field of China, economic loss is huge.
Just because of the importance of drill string, the multiple and seriousness of drill string accident, just carry out a large amount of theories and experimental exploring since the fifties in last century, formed the drill string fault detect and the analytical technology that are used for drilling safety, geology and down-hole equipment operating mode prediction.Because the drillstring vibrations problem is very complicated, all there are error in various degree in existing drillstring vibrations detection and analytical technology.This is mainly because drillstring vibrations not only exists very strong Attenuation and Frequency Dispersion characteristic in transmittance process, and because the reasons such as drill-well operation and plant equipment running also can produce a lot of strong interference.These interfering signals mainly contain: (rotating disk is apart from the nearest vibration source in drill string top to the additional drillstring vibrations that (1) turntable rotation causes, therefore can bring stronger interference.This interference has periodic feature, and relevant with rotating speed); (2) (pressure oscillation that slush pump drives mud directly has influence on hose, drill string is inside and outside and the variation of bit nozzle place pressure in the vibration of slush pump, directly affect drill vibration, thereby produce very strong interference, these disturb take one times of stroke frequency of slush pump as fundamental frequency, comprise the vibration signal composition of each order harmonics); (3) vibration (these vibrations are passed to derrick by ground, and then drillstring vibrations is exerted an influence) of the plant equipment running generations such as diesel machine, diesel-driven generator; (4) vibration of derrick itself (after the vibration that the broken rock of drill bit produces imports the stratum of drill string and wellbore into, can cause the vibration of derrick, derrick just is equivalent to a secondary focus like this); (5) derrick with hang the vibration that outstanding system produces (derrick with hang outstanding system wave, beat etc. all can produce on the signal that the drill string top records directly impact).This shows, the wide material sources of drillstring vibrations interfering signal, energy are very strong, how effectively to detect vibration signals of drilling rod and be one of task that drill string fault detection and diagnosis technology must solve.
Existing underground signal gathers transmission means generally to be had following several: 1, MWD(measurement while drilling, Measure While Drilling): by being arranged on the down-hole near near the measuring cell completed well sub-surface drill bit and the collection of engineering parameter, by mud-pulse, downhole data transmission is arrived ground.The characteristics of this mode are survey tool to be arranged on the bottom of drill string, can directly gather the signal of drill string bottom, but efficiency of transmission are very low, can not satisfy the needs of vibration sampling; 2, wireless transmission: measuring cell is arranged on the down-hole near near drill bit, the collection of completed well sub-surface and engineering parameter, mode by wireless transmit arrives ground with downhole data transmission, but this mode use cost is high, demand strict technology, only have at present strong company of several families that this service can be provided, and existing Radio Transmission Technology can only receive 3000 meters of vertical depths with interior signal, this make drilling depth surpass this apart from the time can't carry out monitoring; 3, record storage mode: record the various parameters of drill string when creeping into, waiting and just can read these parameters after pull out of hole taking out drill string, this method can not play the effect of Real-Time Monitoring and diagnosis, so the down-hole fault diagnosis is had little significance; 4, cable drilling rod (or intelligent drilling rod) is arranged: at every two joint drilling rod joint installation electromagnetic induction coils, its cable extends with drill string and connects into computer system, the transfer rate of this method can reach 57600Byte/s, transfer rate is 2000 times of MWD, efficiency of transmission is high, can realize transmitted in both directions.It has obtained approval and the support of the oilfield technology such as Halliburton, Bake Hughes, Si Lunbeixie and Vad good fortune service company.This shows, want that it is very difficult obtaining the real work information of drill string from the down-hole;
For these situations of prior art, people also attempt adopting drill string top vibration signal to identify underground working, detect bit wear, and formation lithology is made explanations.Clamping band for collecting vibration signals of drilling rod is exactly Typical Representative wherein, and it is arranged on vibration signals of drilling rod collecting unit, wireless data sending transmitter, battery etc. in a ring-type clip, and clip is fixed on kelly bar, gathers thus drill string top vibration signal.But for security consideration, of this sort device does not allow to lay on general rig, because its weight is larger, and potential danger of falling under strong vibration, the event of hurting sb.'s feelings even appears when serious.In addition, depend merely on the detection and diagnosis that drill string top vibration signal also is difficult to carry out underground working, therefore, this device also is not suitable for the diagnosis of underground drill stem fault.
The utility model content
The technical problems to be solved in the utility model is: in order to overcome in prior art, the underground drill stem trouble-shooter involves great expense, installs and uses that cost is high, the deficiency such as have a big risk, and the utility model provides a kind of underground drill stem fault diagnosis system.
The technical scheme that its technical problem that solves the utility model adopts is: drill string is supported by rig floor and derrick; Described rig floor comprises the rig floor that is positioned at the bottom and is positioned at the rig quadruple board platform at middle part; Described drill string comprises kelly bar and drilling rod; One end of described kelly bar passes through in sleeve pipe and is connected with drilling rod; The other end is connected with water tap; Described water tap is connected with hose; Be distributed with standpipe on described derrick; A kind of underground drill stem fault diagnosis system of the present utility model has sound pressure sensor; Well head place three-dimensional acceleration transducer; Drill string top three-dimensional acceleration transducer; Pressure sensor; Multi-channel signal acquiring and dispensing device; Multi channel signals receiving system and computer system; Described sound pressure sensor is fixed on rig floor; Can realize the detection of various sound like this; For operating mode identification is provided convenience; Described well head place three-dimensional acceleration transducer is fixed on sleeve pipe, described pressure sensor is arranged on standpipe, described drill string top three-dimensional acceleration transducer is arranged on water tap, described multi-channel signal acquiring and dispensing device are arranged on the rig quadruple board platform, described sound pressure sensor, well head place three-dimensional acceleration transducer, drill string top three-dimensional acceleration transducer and pressure sensor all are connected with dispensing device with multi-channel signal acquiring, and described multi-channel signal acquiring and dispensing device and multi channel signals receiving system are wireless connections.Multi-channel signal acquiring and dispensing device are arranged on the rig quadruple board platform, and this position can be so that the connection cable between each sensor and multi-channel signal acquiring and dispensing device obtains the most reasonably distributing.Sound pressure sensor is used for measuring the acoustic signal at rig floor place; The three-dimensional that well head place three-dimensional acceleration transducer, drill string top three-dimensional acceleration transducer is used for measuring these two measuring points (X and Y-direction) and vertical direction (Z direction) in horizontal plane is the vibration signal of totally 6 passages; Pressure sensor is used for measuring the pressure of riser interiors drilling fluid; Multi-channel signal acquiring and dispensing device the sound of described measuring point is shaken gather with pressure signal, amplify, the conditioning such as filtration processes, and described sound is shaken carries out longer-distance wireless transmission with pressure signal and change is sent; The sound that the multi channel signals receiving system receives wirelessly from described multi-channel signal acquiring and dispensing device shakes and pressure signal.The present inventor has made exploration to the kind of required sensor and the placement location of sensor, employing is arranged on sound pressure sensor on rig floor, well head place three-dimensional acceleration transducer, drill string top three-dimensional acceleration transducer and pressure sensor, the sound that is used for measuring diverse location shakes and pressure signal, the combining wireless R-T unit is sent to computer system with data parameters, is carried out analysis and the processing of signal by computer system.Underground drill stem fault diagnosis system of the present utility model can adopt the Pattern Filter method of signal processing with the low-frequency vibration signal of drill bit, drill string and mud motor, contact medium-high frequency signals such as touching mill, Fluid-solid action, friction between drill string, drill bit and mud motor and shaft bottom, the borehole wall, and the standpipe pressure signal carries out reasonable, complete separation, then utilizes respectively separation signal feature separately to carry out the diagnosis of drill bit, drill string and mud motor fault.For example, for the vibration signals of drilling rod of low frequency, can realize the analysis of drillstring vibrations form and vibration operating mode; And medium-high frequency collision, impact and friction signal can be realized source of trouble identification and location; Correlation analysis between the high and low frequency signal and information fusion can be used to determine form and the state of drillstring vibrations, and then carry out the diagnosis of drill string fault and the broken rock state of drill bit; And the standpipe pressure signal can be realized the forecast of the operating modes such as the leakage of drill string thorn, drillling tool twisting off, drill bit water blockoff eye, well cleaning, inventionannulus flow situation, power drilling tool state analysis, and the detection of drill bit duty.
Install and fixing for convenient, described well head place three-dimensional acceleration transducer is fixed on the flange of the top of sleeve pipe, and is arranged on the flange of the top of sleeve pipe, can measure the strongest desired signal.
Described pressure sensor is arranged on standpipe, in order to measure the mud pressure of riser interiors.Sound pressure sensor mainly detects around well head, the acoustic signal of rig floor up and down, and in order to measure best described acoustic signal, described sound pressure sensor is fixed on rig floor the position near the thigh of derrick.
Described sound pressure sensor, well head place three-dimensional acceleration transducer, drill string top three-dimensional acceleration transducer and pressure sensor all are connected with dispensing device with multi-channel signal acquiring by cable.
For cable and the hose that prevents drill string top three-dimensional acceleration transducer interferes with each other, the cable that described drill string top three-dimensional acceleration transducer and multi-channel signal acquiring are connected with dispensing device, the distance certain with the hose interval.
The cable that described drill string top three-dimensional acceleration transducer and multi-channel signal acquiring are connected with dispensing device, its outside is coated with protective sleeve.On the one hand, protective sleeve has increased the deadweight of cable, has overcome the deficiency that cable easily swings with the wind; On the other hand, strengthened the intensity of cable, and made cable be difficult for being broken.
Described multi channel signals receiving system and computer system wired connection.Multi channel signals receiving system and computer system can adopt wired connection or wireless connections, but, because distance between multi channel signals receiving system and computer system is not long, in order to reduce dropout, guarantee signal strength signal intensity, adopt the wired connection mode better.
Existing underground drill stem signal pickup assembly only gathers high-frequency signal, and has ignored low frequency signal; Owing to can reflecting the information that a lot of high-frequency signals can not reflect in low frequency signal, the low-frequency vibration signal of the oscillation crosswise of drill bit and drill string, mud motor for example, in order to collect these signals, described multi-channel signal acquiring and dispensing device are that signal sampling rate is not less than 3000Hz and can gathers multi-channel signal acquiring and the dispensing device of full frequency band channel signal.
The beneficial effects of the utility model are; Underground drill stem fault diagnosis system of the present utility model; To sound pressure sensor; Well head place three-dimensional acceleration transducer; Drill string top three-dimensional acceleration transducer and pressure sensor have carried out rational layout; The sound that measures diverse location shakes and pressure signal; The combining wireless R-T unit is sent to computer system with data parameters; Carried out analysis and the processing of signal by computer system; Can realize the location and relative quantity diagnosis of fault; Accuracy rate and the recognition effect of fault diagnosis have greatly been improved; Realize drill bit; The early diagnosis of drill string and mud motor fault; And only adopt several sensors of commonly using on the market, cost is low, and is easy for installation, and the installation site is reasonable, and safety factor is high.
In the utility model, the rig floor operation, and the various sound in the surrounding devices operation process can receive by described sound pressure sensor, by audio-frequency test just can identify acoustic signal the source, judge operating mode, work for the treatment of provides various Useful Informations to signal.Disturbing because there is very strong ground in the well site, how to get rid of these and disturb, realize rationally separating of interfering signal and underground signal composition, is to carry out underground working to detect the first problem that must solve with fault diagnosis.Can utilize the Pattern Filter method of signal to realize effective separation and the identifying processing of various signal components, in conjunction with the correlation between each channel signal of three-dimensional acceleration transducer, and the spatial relation between sensor, can realize source identification and the localization process of various vibration signal compositions, the judgement of drill bit, drill string forms of motion, and and then realize that the underground drill stem operating mode detects and the diagnosis of fault, these are all effects that those skilled in the art have the ability to anticipate, so do not give unnecessary details here.And the standpipe pressure signal can record delicately, the inner various faults that occur of the display well circulating system, and the operating modes such as the leakage of drill string thorn, drillling tool twisting off, drill bit water blockoff eye, well cleaning, inventionannulus flow situation are carried out prediction accurately.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of underground drill stem fault diagnosis system most preferred embodiment of the present utility model.
In figure 1; Sound pressure sensor; 2; Well head place three-dimensional acceleration transducer; 3; Rig floor; 4; Derrick; 5; Water tap; 6; Drill string top three-dimensional acceleration transducer; 7; Multi-channel signal acquiring and dispensing device; 8; The multi channel signals receiving system; 9; The rig quadruple board platform; 10; Computer system; 11; Drill bit; 12; Mud motor; 13; Drilling rod; 14; Pressure sensor; 15; Standpipe; 16; Kelly bar; 17; Sleeve pipe; 18; Hose; 19; The cable that drill string top three-dimensional acceleration transducer and multi-channel signal acquiring are connected with dispensing device.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Underground drill stem is supported by rig floor and derrick 4; Rig floor comprises the rig floor 3 that is positioned at the bottom and the rig quadruple board platform 9 that is positioned at the middle part; Drill string comprises kelly bar 16 and drilling rod 13; One end of kelly bar 16 passes through in sleeve pipe 17 and is connected with drilling rod 13; The other end is connected with water tap 5; Water tap 5 is connected with hose 18; Be distributed with standpipe 15 on derrick 4; As shown in Figure 1; Underground drill stem fault diagnosis system most preferred embodiment of the present utility model; It has sound pressure sensor 1; Well head place three-dimensional acceleration transducer 2; Drill string top three-dimensional acceleration transducer 6; Pressure sensor 14; Multi-channel signal acquiring and dispensing device 7; Multi channel signals receiving system 8 and computer system 10; Sound pressure sensor 1 is fixed on the position of the thigh of close derrick 4 on rig floor 3; Well head place three-dimensional acceleration transducer 2 is fixed on the flange of the top of sleeve pipe 17; Pressure sensor 14 is arranged on standpipe 15; Drill string top three-dimensional acceleration transducer 6 is arranged on water tap 5; Multi-channel signal acquiring and dispensing device 7 are arranged on rig quadruple board platform 9; Sound pressure sensor 1; Well head place three-dimensional acceleration transducer 2; Drill string top three-dimensional acceleration transducer 6 is connected with pressure sensor and all is connected with dispensing device 7 with multi-channel signal acquiring by cable; Multi-channel signal acquiring and dispensing device 7 are wireless connections with multi channel signals receiving system 8; Multi channel signals receiving system 8 is wired connection with computer system 10.
Drill string top three-dimensional acceleration transducer 6 and the cable 19 that multi-channel signal acquiring is connected with dispensing device 7 are oppositely arranged with hose 18; The cable 19 that drill string top three-dimensional acceleration transducer 6 and multi-channel signal acquiring are connected with dispensing device 7, its outside is coated with protective sleeve.
The signal sampling rate of multi-channel signal acquiring and dispensing device 7 is not less than 3000Hz, and can gather the full frequency band channel signal.
2 three-dimensional acceleration transducers, 1 sound pressure sensor and 1 pressure sensor are measured respectively vibration signal, acoustic signal and the pressure signal of each measuring point.Under different operating modes, sound shakes and has the different forms of expression from pressure signal, is containing abundant drill bit, drill string and mud motor motion and fault status information.It is a variety of that underground drill stem fault diagnosis system most preferred embodiment of the present utility model realizes that the mode of underground drill stem fault detect, identification, diagnosis can have, and describes wherein a kind of steps flow chart of mode in detail below in conjunction with the concrete structure of the present embodiment:
Step S1:2 three-dimensional acceleration transducer (2,6) detect and to obtain the three-dimensional acceleration vibration signal that drill bit, drill string, mud motor and shaft bottom, rock of borehole interaction cause, 1 pressure sensor 14 detects the standpipe pressure signal that obtains, and detects by 1 sound pressure sensor 1 the well head acoustic signal that obtains.
Step S2: multi-channel signal acquiring and dispensing device 7 are with described multichannel acceleration vibration signal, standpipe pressure signal and sound pressure signal gathers, amplification and filtering are processed.
Step S3: multi-channel signal acquiring and dispensing device 7 send wirelessly the sound that collects and shake and pressure signal.
Step S4: multi channel signals receiving system 8 receives the data from multi-channel signal acquiring and dispensing device 7 transmissions.
Step S5: computer system 10 receives from the multi-channel Vibration Signal of multi channel signals receiving system 8, pressure signal and acoustic signal.
Step S6: by adopting the digitized audio test, acoustic signal is carried out preliminary identifying processing, determining the rig floor operation, the situations such as ground installation running, and distinguish, get rid of ground for the district and disturb Useful Information is provided.
Step S7: vibration signal and pressure signal are carried out the Pattern Filter method decomposition of signal.
The Pattern Filter method is carried out the optimal Decomposition computing of signal to each vibration with pressure signal, obtains thus a series of time-frequency wavelets.
Vibration signal and pressure signal the optimal decomposition algorithm adopt following time-frequency wavelet design formulas:
In the signal the optimal decomposition algorithm, the Pattern Filter computing module adopts following design formulas:
In formula (a) and formula (b), f is the amplitude modulation function, and g is FM Function; A is amplitude; α is decay factor, s
-2β
iBe coefficient (i=1,2); β
1Be initial phase, rad; β
2Be angular velocity omega, rad/s; T is the time, s; M is optimal Decomposition time-frequency wavelet quantity.
Step S8: call " the Pattern Filter parameter space classified information subdata base " information in " drill bit, drill string and mud motor fault diagnosis system knowledge base ", the optimum time frequency atom that accordingly step S7 is obtained is sorted out automatically, time-frequency atom after sorting out is carried out signal reconstruction, come the various signals of aid identification in conjunction with the digitized audio measuring technology.
Described " drill bit, drill string and mud motor fault diagnosis system knowledge base ", a unitized drill bit, drill string and mud motor fault diagnosis knowledge data base, specifically by Pattern Filter parameter space classified information subdata base, type signal feature structure knowledge word bank, drill column structure information word bank, and drill bit, drill string and 4 parts of mud motor State Knowledge word bank form.This knowledge base can obtain by two approach, the one, to drilling well sound shake and the pressure signal processing procedure in set up; The 2nd, align in drilling well top hole drilling process sound and shake and set up with the processing of pressure signal; Those skilled in the art can obtain by the experiment of limited number of time.
Step S9: the various characteristic signals of multichannel after separating are carried out classified finishing, then the uniformity signal of different passages compared, utilize the Attenuation and Frequency Dispersion characteristic in the vibration signal communication process, the information such as the time concurrent characteristic of Analysis deterrmination separation signal, the intensity of signal, frequency spectrum are differentiated source and the direction of propagation of these signal components.Then in conjunction with " the drill column structure information word bank " of " drill bit, drill string and mud motor fault diagnosis system knowledge base ", access the entity structure information of described drill bit, drill string and mud motor, further determine form, source and the position of fault.For example, tubing string has unique architectural feature at the formed drill string of the shock of different measuring points top vibration time-domain signal, the formed top of different impingement positions vibration signal waveforms is different, and the not homogeneous of same position shock has similar time domain waveform curve.
Step S10: the optimum time frequency atomic clusters result that provides according to step S8, and the characteristic information such as source of the described sort reorganization signal of step S9, position, " type signal feature structure knowledge word bank " in conjunction with in " drill bit, drill string and mud motor fault diagnosis system knowledge base " carries out the preliminary etiologic diagnosis of down-hole fault.
Step S11: some failure and special that drill bit, drill string and mud motor detected are carried out labor, extract its signal characteristic and signal structure new knowledge afterwards, upgrade and enrich " drill bit, drill string and mud motor fault diagnosis system knowledge base ".
Step S12: obtain corresponding result from step S8, step S9 and step S10, form the state vector of reflection drill bit, drill string and the current operation conditions of mud motor.
Step S13: open " drill bit, drill string and mud motor State Knowledge word bank " in " drill bit, drill string and mud motor fault diagnosis system knowledge base ", access drill bit, drill string and mud motor fault status information matrix.
Step S14: the current set state vector of step S13 acquisition and the state vector in described drill bit, drill string and mud motor fault status information matrix are optimized coupling, the etiologic diagnosis result of integrating step S10 and the analysis that the source of trouble is done, judge the type of down-hole fault, and the duty of whole drill string.
Step S15: demonstration and the warning of drill string down-hole fault diagnosis result.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to the claim scope.
Claims (8)
1. underground drill stem fault diagnosis system; Described drill string is supported by rig floor and derrick (4); Described rig floor comprises the rig floor (3) that is positioned at the bottom and is positioned at the rig quadruple board platform (9) at middle part; Described drill string comprises kelly bar (16) and drilling rod (13); One end of described kelly bar (16) passes through in sleeve pipe (17) and is connected with drilling rod (13); The other end is connected with water tap (5); Described water tap (5) is connected with hose (18); Be distributed with standpipe (15) on described derrick (4); It is characterized in that: have sound pressure sensor (1); Well head place three-dimensional acceleration transducer (2); Drill string top three-dimensional acceleration transducer (6); Pressure sensor (14); Multi-channel signal acquiring and dispensing device (7); Multi channel signals receiving system (8) and computer system (10); Described sound pressure sensor (1) is fixed on rig floor (3); Described well head place three-dimensional acceleration transducer (2) is fixed on sleeve pipe (17); Described pressure sensor (14) is arranged on standpipe (15); Described drill string top three-dimensional acceleration transducer (6) is arranged on water tap (5); Described multi-channel signal acquiring and dispensing device (7) are arranged on rig quadruple board platform (9); Described sound pressure sensor (1); Well head place three-dimensional acceleration transducer (2); Drill string top three-dimensional acceleration transducer (6) is connected 14 with pressure sensor) all be connected with dispensing device (7) with multi-channel signal acquiring; Described multi-channel signal acquiring and dispensing device (7) are wireless connections with multi channel signals receiving system (8).
2. underground drill stem fault diagnosis system as claimed in claim 1 is characterized in that: described well head place's three-dimensional acceleration transducer (2) is fixed on the flange of the top of sleeve pipe (17).
3. underground drill stem fault diagnosis system as claimed in claim 1 is characterized in that: described sound pressure sensor (1) is fixed on the position of the upper thigh near derrick (4) of rig floor (3).
4. underground drill stem fault diagnosis system as claimed in claim 1, it is characterized in that: described sound pressure sensor (1), well head place's three-dimensional acceleration transducer (2), drill string top three-dimensional acceleration transducer (6) are connected 14 with pressure sensor) all be connected with dispensing device (7) with multi-channel signal acquiring by cable.
5. underground drill stem fault diagnosis system as claimed in claim 4, it is characterized in that: the cable (19) that described drill string top three-dimensional acceleration transducer (6) and multi-channel signal acquiring are connected with dispensing device (7), the distance certain with hose (18) interval.
6. underground drill stem fault diagnosis system as described in claim 4 or 5 is characterized in that: the cable (19) that described drill string top three-dimensional acceleration transducer (6) and multi-channel signal acquiring are connected with dispensing device (7), its outside is coated with protective sleeve.
7. underground drill stem fault diagnosis system as claimed in claim 1, is characterized in that: described multi channel signals receiving system (8) and computer system (10) wired connection.
8. underground drill stem fault diagnosis system as claimed in claim 1, it is characterized in that: described multi-channel signal acquiring and dispensing device (7) are not less than 3000Hz for signal sampling rate and can gather multi-channel signal acquiring and the dispensing device of full frequency band channel signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176237 CN203257406U (en) | 2013-04-09 | 2013-04-09 | Underground drill column fault diagnosis system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320176237 CN203257406U (en) | 2013-04-09 | 2013-04-09 | Underground drill column fault diagnosis system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453842A (en) * | 2014-11-07 | 2015-03-25 | 常州大学 | Oil gas well down-hole fault diagnosis system and method |
| CN105386790A (en) * | 2015-11-05 | 2016-03-09 | 辽宁工程技术大学 | Device for on-line monitoring wear of underground essential equipment |
| CN107850686A (en) * | 2015-05-14 | 2018-03-27 | 科诺科菲利浦公司 | System and method for determining drillstring motion using acceleration information |
| CN108952681A (en) * | 2017-05-27 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of visualizing monitor system for drillng operation |
| CN108955868A (en) * | 2017-05-22 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of underground drilling state identification method |
| CN113187464A (en) * | 2021-04-16 | 2021-07-30 | 中石化江钻石油机械有限公司 | Well drilling monitored control system with trouble early warning function in pit |
-
2013
- 2013-04-09 CN CN 201320176237 patent/CN203257406U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453842A (en) * | 2014-11-07 | 2015-03-25 | 常州大学 | Oil gas well down-hole fault diagnosis system and method |
| CN104453842B (en) * | 2014-11-07 | 2017-04-26 | 常州大学 | Oil gas well down-hole fault diagnosis system and method |
| CN107850686A (en) * | 2015-05-14 | 2018-03-27 | 科诺科菲利浦公司 | System and method for determining drillstring motion using acceleration information |
| CN105386790A (en) * | 2015-11-05 | 2016-03-09 | 辽宁工程技术大学 | Device for on-line monitoring wear of underground essential equipment |
| CN108955868A (en) * | 2017-05-22 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of underground drilling state identification method |
| CN108955868B (en) * | 2017-05-22 | 2020-09-08 | 中国石油化工股份有限公司 | Underground drilling state identification method |
| CN108952681A (en) * | 2017-05-27 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of visualizing monitor system for drillng operation |
| CN113187464A (en) * | 2021-04-16 | 2021-07-30 | 中石化江钻石油机械有限公司 | Well drilling monitored control system with trouble early warning function in pit |
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